by courtesy of研短语⁵⁵⁹⁵⁷ 基本例句 蒙…的好意或准许; 由于…的作用 We have learned by courtesy of Mr. Greenhow that you are one of the leading importers of Chinese chemicals and pharmaceuticals in your country. 承蒙格林豪先生介绍，我们得知你们是中国化工产品和药品的主要进口商之一。 www.musichouse.weclub.info